23130340 has 24 divisors (see below), whose sum is σ = 50141952. Its totient is φ = 8953440.

The previous prime is 23130323. The next prime is 23130347. The reversal of 23130340 is 4303132.

It is not an unprimeable number, because it can be changed into a prime (23130347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18034 + ... + 19273.

It is an arithmetic number, because the mean of its divisors is an integer number (2089248).

Almost surely, 2^23130340 is an apocalyptic number.

23130340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23130340 is an abundant number, since it is smaller than the sum of its proper divisors (27011612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23130340 is a wasteful number, since it uses less digits than its factorization.

23130340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37347 (or 37345 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23130340 is about 4809.4012101300. The cubic root of 23130340 is about 284.9228887514.

Adding to 23130340 its reverse (4303132), we get a palindrome (27433472).

The spelling of 23130340 in words is "twenty-three million, one hundred thirty thousand, three hundred forty".